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SDR interface for the TS-590S

These are the instructions to install the IFace interface inside of the Kenwood TS-590S. The installation is very easy. For the TS-590SG see the note below.

IFace I/O signal connections

The TS-590S, like other radios, has a complex configuration and uses different intermediate frequencies also depending on the band used. This radio requires 2 IFace cards because two intermediate frequencies are used, one at 11.374 MHz and another at 73.095 MHz. We are interested in having a “wide band” signal, so it will have to be taken before the main band pass filter.
The sequence of operations to be performed to obtain a sufficient bandwidth to realize a panoramic receiver around the chosen IF frequency is shown below. The path of the TX and RX signals is partly separate, so the PTT command to disable the IFace during transmission will not be necessary. The following images show the point where the IF signal will be taken.

As you can see below, the radio uses two different frequencies depending on the band chosen: it is therefore advisable to use two IFace interfaces and not to insert a mechanical switch.

Let’s start by analyzing the wiring diagram. We have to find the first mixer and where to take the power supply. From the following image everything will appear clear.

At this point we have to locate the points where we connect the electric cables to the IFace. The following images show where to take the various signals.

Last but not least, don’t forget to provide power supply to the IFace: you can easily find a source inside your radio.

NOTE ABOUT THE TS-590SG

If you like the idea and the goodness of the proposal buy an IFace using the button below.

ATTENTION: Though installing the IFace is not difficult, you do this at your own risk. TSP S.r.l. is not responsible for any damage, unwanted side-effects or whatever.

For more information do not hesitate to write us.
Have fun!

SDR interface for the TS-140S/680S

These are the instructions to install the IFace interface inside of the Kenwood TS-140S/680S. The installation is very easy.

IFace I/O signal connections

The TS-140S/680S, like other radios, has a fairly complex configuration and uses different intermediate frequencies. We are interested in the first, the “wide band” one, the one before the main band pass filter (the roofing filter so to speak). The sequence of operations to be performed in order to obtain a sufficient bandwidth to realize a panoramic receiver around the chosen IF frequency is shown below. The signal path for TX and RX are fairly separated, so to use the PTT command to disable the IFace during transmission is not required. The following images show the point where the IF signal will be taken.

Let’s start by analyzing the wiring diagram. We have to find the first mixer and where to take the power supply. From the following image everything will appear clear.

At this point we have to locate the points where we connect the electric cables to the IFace. The following images show where to take the various signals.

If you like the idea and the goodness of the proposal buy an IFace using the button below.

ATTENTION: Though installing the IFace is not difficult, you do this at your own risk. TSP S.r.l. is not responsible for any damage, unwanted side-effects or whatever.

For more information do not hesitate to write us.
Have fun!

SDR interface for the TS-450S and the TS-690S

These are the instructions to install the IFace interface inside of the Kenwood TS-450S/690S. The installation is very easy.

The TS-450S/690S, like other radios, has a fairly complex configuration and uses different intermediate frequencies. We are interested in the first, the “wide band” one, the one before the main band pass filter (the roofing filter so to speak). The sequence of operations to be performed in order to obtain a sufficient bandwidth to realize a panoramic receiver around the chosen IF frequency is shown below. The signal path for TX and RX are fairly separated, so to use the PTT command to disable the IFace during transmission is not required. The following images show the point where the IF signal will be taken.

Block diagram of the TS.-450S
Bloc diagram of the 1° mixer

Let’s start by analyzing the wiring diagram. We have to find the first mixer and where to take the power supply. From the following image everything will appear clear.

Electric diagram of the 1° mixer

At this point we have to locate the points where we connect the electric cables to the IFace. The following image shows where to take the various signals.

Layout of the RF UNIT

This last image shows the RF UNIT and where the IFace interface is to be connected.

Picture of the RF UNIT

If you like the idea and the goodness of the proposal buy an IFace using the button below.

ATTENTION: Though installing the IFace is not difficult, you do this at your own risk. TSP S.r.l. is not responsible for any damage, unwanted side-effects or whatever.

For more information do not hesitate to write us.
Have fun!

TS-2000SDR: new testimonial!

Our client Alberto IK0ZTL just sent us a nice testimonial on how he used our IFace card to add an SDR receiver to his nice TS-2000.

He did a great job by inserting everything into the radio, including the RTL-SDR converter, so that he only had the USB cable out to connect to the computer.

Find all the nice work described in a PDF to download right below.

Instead, to buy an IFace, use this following button.

Good reading, congratulations to Alberto and good listening with SDR technology.

Installing IFace inside the R-5000

This page shows how to install the IFace in the Kenwood R-5000. Being a receiver we will not have to use the PTT signal, so the installation will be even easier.

The R-5000 uses different intermediate frequencies depending on the band on which it is operating (HF or VHF) but there is a common one, 58.1125 MHz. The one described here is the sequence of operations to be performed to obtain the signal to be sent to the external SDR receiver and shows where to connect the power and signal pickup wires.

The following images show the block diagram of the radio and the point where to take the IF signal.

Let’s analyze the wiring diagram to find the exact point where to take the IF signal and the power supply for IFace.

The following image shows where the signals relative to the IF and to the supply voltage are located.

This last image helps to identify the points where to take the IF and the power supply.

With the coaxial coaxial cable supplied in the kit, the IF signal goes from the IFace to the external SDR receiver.

ATTENTION: Though installing the IFace is not difficult, you do this at your own risk. TSP S.r.l. is not responsible for any damage, unwanted side-effects or whatever.

For more information do not hesitate to write us.
Have fun!

Installing IFace inside the TS-2000

These are the instructions to install the IFace interface inside of the Kenwood TS-2000. The installation is very easy.

The result you can obtain is well shown in the following video.

The TS-2000, as well as other radios, has a fairly complex configuration and uses different intermediate frequencies depending on the band on which it is operating. In any case, the one described here is the sequence of operations to be done to obtain sufficient bandwidth to make a panoramic receiver around the selected IF frequency. For this reason we opt for the first average frequency and before the roofing filter (or intermediate frequency filter).
The following image shows the point where the IF signal will be taken for reception in the HF / 50 MHz band.

  • The point where you can take the IF signal can be more precisely identified by means of the wiring diagram as shown in the following images. We can use the CN6 connector (pay attention to the polarity). The electronic card of interest is the one called TX-RX1 and is located on the bottom side of the radio.
  • Now we have to look for the point where to draw the power supply. In the lower part of the TX-RX1 diagram on the left is the “PANEL” connector. Nearby is the resistance R398: at the ends of this it is possible to take the voltage with which to feed the IFace. These components are physically located near the CN6 connector from which the IF signal is taken.
  • PTT: for the TS-2000 it is not required because the reception circuit is automatically muted (MUTE) during transmission.
  • In the following pictures you can see how close to each other are the points where to take the IF signal and the power supply: the installation is therefore really simple.

ATTENTION: Though installing the IFace is not difficult, you do this at your own risk. TSP S.r.l. is not responsible for any damage, unwanted side-effects or whatever.

For more information do not hesitate to write us.
Have fun!

Installing IFace inside the TS-530s

These are the instructions to install the IFace interface inside of the Kenwood TS-530s. The installation is very easy.

  • On the upperside of the radio, after removing the cover, locate the electronic board called “IF Unit”: this is shown in the following picture. In the same you can also see where you can mount the IFace
    with simple double-sided adhesive tape.
  • Refer to the following images of the wiring diagram to identify the points where you can weld the cables for the IF, power supply and PTT.
  • Refer to the following image to identify the points on the PCB where to weld the various connecting cables.
  • Finally connect the coaxial output cable of the IF signal and pass it through the ventilation holes of the radio as shown in the picture.

ATTENTION: Though installing the IFace is not difficult, you do this at your own risk. TSP S.r.l. is not responsible for any damage, unwanted side-effects or whatever.

For more information do not hesitate to write us.
Have fun!

List of the radio mods to apply the IFace

Here below you can find links to the articles that describe how to modify your radios to insert an IFace interface into them. For those radios that are not included yet, send a request so that it can be entered as soon as possible.


ICOMKENWOODYAESU
IC-706 TS-140s/680s
IC-735 TS-440FT-450D
IC-746PRO TS-450S/690SFT-817
IC-7410TS-590S/590SGFT-818
IC-756PROII TS-790FT-857
IC-756PROIII TS-530sFT-897
IC-775TS-830sFT-991
IC-7000TS-850FTDX-1200
IC-7100TS-2000
IC-7600
IC-R72R-5000
IC-9100
IC-R9000

ATTENTION: Though installing the IFace is not difficult, you do this at your own risk. TSP S.r.l. is not responsible for any damage, unwanted side-effects or whatever.